\begin{table}
\caption{Performance comparison (300 episodes, last 50 avg)}
\label{tab:compare}
\begin{tabular}{lrrl}
\toprule
Metric & Baseline & DQN & Improvement \\
\midrule
Average Daily Cost (¥) & 1349841.61 & 395861.89 & 72.2% ↓ \\
Stock-out Rate (%) & 28.33 & 97.78 & -69.4pp ↑ \\
Service Level (%) & 71.67 & 2.22 &  \\
Inventory Turnover & 230.01 & 13766.57 & 5885.2% ↑ \\
Cost Variance & 766280519192.64 & 56795567720.60 & -92.6% ↓ \\
CVaR@5% (¥) & 2489642.00 & 1086928.89 & -56.3% ↓ \\
Gini Coefficient & 0.37 & 0.22 & -41.3% ↓ \\
Bullwhip Ratio & 6.74 & 0.37 & -94.5% ↓ \\
\bottomrule
\end{tabular}
\end{table}
